本次研究以2019年陈旗远方牧场退化打草+放牧利用条件下的土壤养分为研

本次研究以2019年陈旗远方牧场退化打草+放牧利用条件下的土壤养分为研究对象，并揭示土壤养分的变化规律。采集并测定了不同深度（0-10cm、10-20cm和20-30cm）土壤的全氮、全磷和有机质的含量。结果表明：不同土层的土壤全氮，全磷和有机质的含量均在0-10cm深度的土层里含量最大，它们含量分别为3.15g/kg，0.45g/kg，72.93g/kg。从以上得到的测定结果来看，土壤的全氮、全磷和有机质均呈现了随着土层深度的增加而连续降低的变化。本次的测定研究的结果不仅对保护呼伦贝尔大草原土壤生态环境有重大的意义，对受损草原土壤恢复也提供了理论支持。<br>关键词：全氮；全磷；有机质；土壤养分

本次研究以2019年陈旗远方牧场退化打草+放牧利用条件下的土壤养分为研究对象，并揭示土壤养分的变化规律。 采集并测定了不同深度（0-10cm、10-20cm和20-30cm）土壤的全氮、全磷和有机质的含量。 结果表明：不同土层的土壤全氮，全磷和有机质的含量均在0-10cm深度的土层里含量最大，它们含量分别为3.15g/kg，0.45g/kg，72.93g/kg。 从以上得到的测定结果来看，土壤的全氮、全磷和有机质均呈现了随着土层深度的增加而连续降低的变化。 本次的测定研究的结果不仅对保护呼伦贝尔大草原土壤生态环境有重大的意义，对受损草原土壤恢复也提供了理论支持。<br>关键词：全氮；全磷；有机质；土壤养分

In this study, the soil nutrients under the condition of degraded grazing + grazing utilization in the distant pasture of Chenqi in 2019 were taken as the research object, and the change rule of soil nutrients was revealed. The contents of total nitrogen, total phosphorus and organic matter in different depths (0-10cm, 10-20cm and 20-30cm) were collected and measured. The results showed that the contents of total nitrogen, total phosphorus and organic matter in different soil layers were the highest in the 0-10cm depth soil layer, which were 3.15g/kg, 0.45g/kg and 72.93g/kg respectively. From the above results, the total nitrogen, total phosphorus and organic matter of the soil showed a continuous decrease with the increase of soil depth. The results of this study not only have great significance to protect the soil ecological environment of Hulunbuir grassland, but also provide theoretical support for the restoration of damaged grassland soil.<br>Key words: total nitrogen; total phosphorus; organic matter; soil nutrients<br>